Features
- 2.7V to 5.5V operating input range
- 3A output current
- Output adjustable from 0.6V
- 100% duty cycle in dropout
- 77mΩ and 42mΩ internal power MOSFET switches
- High switching frequency (1.5MHz)
- EN for power sequencing
- Internal soft-start
- Cycle-by-cycle overcurrent protection (7 times)
- OCP and SCP with hiccup mode
- Input undervoltage lockout (UVLO)
- Over-temperature protection
- Small TSOT23-6 package
Description
The RAA808013 is a SOT23-6 single-channel DC/DC synchronous buck regulator. To cover 2.7V ~ 5.5V input rail and 3A loading applications, the regulator requires a high switching frequency to minimize inductor size, improve transient response performance, and improve light-load efficiency. The regulator is designed with constant on-time (COT) IP to improve transient response performance and pulse-frequency modulation (PFM) to improve light load efficiency. Simplify the BOM number without compensation. The RAA808013 is available in a 6-pin 2.9mm x 2.8mm SOT23-6 package.
Parameters
| Attributes | Value |
|---|---|
| Topology [Rail 1] | Buck |
| Outputs (#) | 1 |
| Input Voltage (Min) [Rail 1] (V) | 2.7 |
| Input Voltage (Max) [Rail 1] | 5.5 |
| Output Voltage (Min) [Rail 1] (V) | 0.6 |
| Output Voltage (Max) [Rail 1] (V) | 5 |
| Output Current (Max) [Rail 1] (A) | 3 |
| Switching Frequency Range (Typical) (kHz) | 1500 - 1500 |
| Control Type | COT |
| Peak Efficiency (%) | 95 |
| IQ [Rail 1] (µA) | 52 |
| SYNCH Capability | No |
| Qualification Level | Standard |
| Temp. Range (°C) | -40 to +125°C |
| Simulation Model Available | iSim |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSOT | 2.9 x 1.6 x 0.87 | 6 | 1 |
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Additional Applications
- Low-voltage, high-density power system
- Point-of-load regulation for high-performance DSPs, FPGAs, ASICs, and microprocessors
- Broadband, networking, and optical
- Communications infrastructure
- Portable instruments and battery-powered devices
- Solid-state drives (SSD)
- Industrial and medical equipment
- Gaming, DTV, and set-top boxes